Last updated 2026-07-11
Kids who use AAC can absolutely learn to talk about things that already happened, but it doesn't come naturally the way requesting a snack does. It takes past-tense words actually loaded onto the device, visual supports like photos or event strips, and an adult modeling past-tense language on that device day after day. Most children need months of this before they start doing it on their own, so the best place to start is with events your child actually cares about, and then model, model, model.
Why the past is such a hard target
Talking about something that already happened is one of the hardest things a child ever learns to do with language. Even kids who speak take years to get it right, and mistakes like "I goed" or "we eated" stick around well into preschool. For AAC users, three problems stack on top of each other.
First, there's the vocabulary problem. Many AAC systems are built around requesting things and commenting on the here and now, so words like "yesterday," "before," "already," and "used to" end up buried several menus deep or missing entirely. If the word isn't on the device, the child simply has no way to say it.
Second, there's nothing to point at. When a child wants a cookie, the cookie is right there. When they want to tell you about a dog they saw that morning, the moment is long gone. Kids who lean heavily on context and visual cues, which describes a lot of AAC users and especially autistic children, genuinely struggle to hold an abstract memory in mind while also navigating a device to describe it [1].
Third, and this catches a lot of parents off guard: many AAC users have simply never seen anyone use their device to talk about the past. If the adults around them mostly model requests and in-the-moment comments, the child reasonably assumes that's all the device is for. Somebody has to show them otherwise.
Check whether the device even has the words
Before you try to teach this, pull up your child's system and see what it can actually support. A few categories matter here. Time words like "yesterday," "before," "last night," "this morning," "already," "when," and "a long time ago" anchor a message in the past even without a correct verb ending. Verb forms matter too: richer systems (built on frameworks like LAMP or Vocabulary for Life) usually carry both base and past-tense verbs, while simpler grid systems may only have the base form. If your child's device has "eat" but not "ate" or "eating," mention it to your SLP.
Evaluative words like "fun," "scary," "good," "bad," "funny," and "hard" let a child comment on an experience instead of just naming it. "Park" plus "fun" is already a complete, meaningful message about the past. Later, narrative connectors like "then," "after," "next," and "because" come into play, once a child is ready to string events together in order.
The American Speech-Language-Hearing Association notes that AAC systems should support the full range of communicative functions, including narrating and describing past events, not just requesting [2]. If entire categories are missing from your child's system, ask the SLP or AT specialist to add them. Most modern systems can be customized this way.
| Vocabulary category | Examples | Why it matters for past tense |
|---|---|---|
| Time words | yesterday, before, already, last night | Signal that the event is over |
| Past verb forms | ate, went, saw, fell, made | Grammatical past tense |
| Evaluative words | fun, scary, good, hard | Let child comment on the experience |
| People and places | names, home, school, park, grandma's | Anchor the event to a location or person |
| Narrative connectors | then, after, because, next | Sequence multiple events |
What modeling actually looks like
The core strategy here is aided language stimulation: you use your child's own AAC system while you talk, the same way you'd narrate for any child still learning language, except now it's happening on their device. For past tense, that means narrating finished events out loud, regularly, without asking the child to repeat you.
Say you just got home from the playground. You sit with your child, open the device, and say while touching each symbol: "We went to the park. You went on the slide. It was fun. You got dirty." Then you stop. No quiz, no "now you try." You've just shown them what past-tense communication looks like on their own system.
Research on aided language stimulation consistently finds that children pick up more of the targeted vocabulary and language structures when adults model directly on the device rather than only speaking [3]. The effect is stronger when the modeling happens often and during real moments rather than in drills.
A few things help it land. Do it right after the event, while the memory is fresh, instead of saving it for a bedtime recap. Keep messages short, two to four symbols is plenty; this isn't a lecture. Pull up a photo on your phone while you model on the device, since the picture anchors the abstract moment. And aim for your child's level plus one: if they're using single symbols, model two-symbol past-tense messages; if they're combining three words, model four-word narratives.
Visual supports carry a lot of the weight
Visuals are probably the most practical tool you have here, and they cost almost nothing to make. A photo book or memory book, physical or digital, holding pictures from recent events (a birthday party, a dentist visit, field day) gives you something to go through together while you model past-tense language for each one. The photo holds the memory in place so your child can focus on communicating instead of straining to remember what happened.
An event strip takes this a step further: three to five pictures in order, left to right, showing what happened. We got in the car, we went to McDonald's, you had nuggets, we came home. That sequence helps kids who have trouble figuring out what's actually worth telling about an event, a skill researchers call narrative macrostructure that many AAC users need taught directly rather than absorbed on their own [4].
For something that happens over and over, like swimming lessons or Saturday mornings at grandma's, it helps to build a simple communication board just for that context. After swimming, you pull out the swimming board and the words are already there: "pool," "kicked," "splash," "cold," "tired." The scaffolding is done ahead of time.
Some SLPs also build a dedicated "talking about my day" page right into a child's tablet-based AAC system. It's not universal practice, but for kids who find the full vocabulary set overwhelming, a simplified entry point cuts down the navigation enough that a message can actually get out.
The routines that make it stick
Routines are where this skill actually takes hold. Kids who use AAC learn language through repetition in predictable settings, and past tense is no different.
The most reliable one is an end-of-day review (sometimes called a "recall conversation" or "shared review" in the research). Sit together, ideally with photos or the day's event strip, and talk through what happened, modeling on the device and pausing so your child can jump in. Some kids respond right away; others need weeks of this before they attempt anything themselves.
A school-home communication book helps too. The teacher writes or photographs a few things that happened at school, and you use that as your script for the evening conversation. It takes the memory burden off both of you and gives you something concrete to talk about, which matters, since a conversation about the past needs a partner who wasn't actually there.
If your child has regular therapy sessions, ask the SLP to build in a short past-event recall activity each time. Even five minutes of "what did you do this weekend, let's find it on your device" adds up over the weeks.
For younger kids, roughly 2 to 5, book-sharing about familiar events is a gentler option. Books like "Yesterday I Had the Blues," or simple wordless picture books, let you narrate past events on the device in a way that feels like play instead of practice.
Consistency beats duration here. A five-minute routine every single day will get you further than a 45-minute session once a week.
How is teaching past tense different for autistic AAC users?
Autistic children who use AAC often remember far more than you'd expect, especially about events that felt intense or followed a predictable pattern. Some kids can describe a fire drill from three months ago in remarkable detail if you give them the right scaffold. Others have genuine trouble with episodic memory, the autobiographical "I was there" memory that sits under past-tense narration [5].
So don't assume weak past-tense communication means weak memory. It might mean the child doesn't realize talking about the past is something they're allowed to do, doesn't have the words for it yet, or just can't get started without a cue.
Automatic social scripts around the past ("how was your day?") can trip kids up too. The question is vague, the expected answer is short, and nothing in the room helps with retrieval. Autistic kids often do much better with specific cues: "You had PE today. What did you do in PE?" Then a photo. Then the device. That scaffolded sequence is a much kinder on-ramp than an open question.
Echolalia shows up here in interesting ways. Some kids echo phrases they've heard about past events ("we went to Disney World," "I fell down") before they generate original past-tense messages of their own. That's not a problem, it's often a stepping stone, and our piece on echolalia looks at how echoed language builds toward more generative communication.
For autistic AAC users especially, tying past-tense communication to a special interest opens a lot up. A child obsessed with trains who won't narrate their school day may be wildly motivated to tell you about the train museum visit. Start there.
When should a child be able to talk about the past with AAC?
There's no clean timetable, and you should be suspicious of anyone who hands you a firm age. In typical spoken development, children start using past tense around 24 to 30 months and are mostly consistent by age 4 to 5, though it varies a lot [6]. For AAC users the timeline is even harder to pin down, since it depends on the quality of the system, how much modeling the child has had, cognitive factors, and whether past-tense communication has been taught directly.
What the research does suggest is that AAC users can develop past-tense narration, and the main variable is systematic instruction plus consistent adult modeling. A study in the journal Augmentative and Alternative Communication found that school-age children with complex communication needs who received aided language input including past-tense modeling showed measurable increases in past-tense symbol use over a 10-week period [3].
A rough progression tends to look like this: the child first responds to past-tense questions with a single symbol ("park," "yes," "fun"), then starts adding a time word without prompting ("yesterday" plus an activity), then begins initiating past-tense communication unprompted, usually about high-interest events, and eventually sequences two or more events into a simple narrative.
Most kids don't move through these steps in order, and plenty sit at the first or second stage for a long stretch before something clicks. That's normal. Look for movement over months, not mastery in weeks.
If your child has used AAC for more than a year with good vocabulary access and still shows no past-tense communication despite steady modeling, raise it with the SLP. It may point to the need for a different approach, a vocabulary audit, or a look at other factors, and early intervention during the preschool years tends to produce better outcomes, though gains are possible at any age.
What role does the SLP play?
Your speech-language pathologist is the architect of this plan; you're the general contractor. The SLP sets vocabulary targets, picks the strategy, tracks progress, and adjusts it. You run it daily in real life, because that's where the skill actually takes root.
Worth asking your SLP directly: whether past tense is actually written into the treatment goals (if it's not in the IEP or therapy plan, it's probably not being addressed on purpose, so ask to add it); what vocabulary to model at home (a short list tied to real upcoming events, like the birthday party next weekend or the dentist on Tuesday, makes practice specific instead of vague); whether they can show you how to model on the device (watching an SLP do aided language stimulation even once beats reading about it ten times, and if you do teletherapy you can ask for a recorded clip); and how progress will be measured (a good goal starts with a baseline, so if the SLP can tell you your child currently uses zero past-tense symbols in a 20-minute conversation sample, you have something to compare against in three months).
For families working through school services, past-tense communication reads well as a literacy and social participation goal, not only a speech goal, which can make it easier to get the IEP team on board. Narrative skills, including talking about past events, tie directly to reading comprehension and writing [4].
Our guide to speech therapy and speech therapists has more on building a productive relationship with your child's SLP.
What if my child won't engage with past-tense activities at all?
This is really common, and it usually isn't defiance. A few things might be going on.
The activity might feel like a test. Kids who've had a lot of prompted communication practice often shut down the second they sense they're being graded. If your end-of-day review has the flavor of "now tell me what you did," some kids check out fast. Try making it more like sharing your own day instead: "I went to the grocery store. It was loud. I saw apples." Go first. Model it. Make it mutual.
Or the event just wasn't meaningful to the child. Adults decide what's worth talking about, but kids have their own priorities. The farm field trip you thought was magical might have been meh; the weird bug on the playground might be the thing they actually want to tell you about. Follow their lead on topic.
Sometimes the navigation load is too high. If finding the words takes six screen taps, a kid who's already fried from the school day is going to give up. That's a real argument for a simplified past-tense board or page, at least to start.
And some kids just need more input before output. Some children need months of hearing past-tense language modeled before they try to produce it themselves, which isn't unusual in typical language acquisition either. A child learning to talk hears thousands of past-tense sentences before saying their first "went." AAC users often need the same long runway.
If your child uses Little Words, the app's daily conversation prompts include past-event questions you can use as light starting points. Take the quiz to see if the approach fits your child's stage.
If engagement stays very low after several months of varied, low-pressure attempts, bring that to the SLP. It may be worth asking whether the current AAC system fits the child's access and cognitive profile, and our piece on AAC devices covers different system types.
Moving from naming events to telling stories about them
Naming an event and narrating it are genuinely different skills. "Park" is labeling. "We went to the park, I went on the swings, it was fun, I fell" is narration. Getting from the first to the second takes time and specific teaching.
Narrative skill has been studied quite a bit in children with developmental language disorders and in AAC users. Researchers use a framework called story grammar, which names the parts of a complete narrative: setting, initiating event, internal response, attempt, outcome, and ending [4]. You wouldn't teach this framework directly to a young child, but it helps you, as the parent or SLP, notice what's missing.
In practice, moving toward simple narration means modeling sequences instead of single events ("We went to the store. We got bananas. You dropped the banana. We laughed," supported by an event strip); adding an emotional response ("You were surprised when the balloon popped," since emotion words tend to go missing from AAC systems even though they're a big part of what makes a story interesting); asking "what happened next" once the child produces a past-tense message instead of just confirming or expanding it, which teaches them the message can keep going; and reading and retelling books with predictable, repetitive structure, since after reading "The Very Hungry Caterpillar" many times, retelling it on the device becomes a structured way to practice sequenced past narration.
Don't rush narration. A child who can reliably produce two-symbol past-tense messages is already building the foundation. The story comes later.
Research doesn't have a lot to say specifically about AAC and past tense. Most studies track vocabulary size, communication rate, or symbol learning, not particular grammatical structures. Still, a few things are clear. The strongest finding is that aided language input works: when communication partners model language directly on the AAC system instead of just speaking, AAC users go on to produce more varied and complex language over time [3]. Narrative skill is a different story, though. A 2016 study found that children with complex communication needs told stories with fewer story grammar components and shorter episodes than age-matched speaking peers, even when their vocabulary was sufficient [4]. Narrative doesn't show up automatically once a child has the words. It has to be taught directly. As for timing, the American Academy of Pediatrics recommends evidence-based speech and language services as early as possible for children with developmental delays, and says AAC should be considered whenever natural speech isn't enough, with no minimum age [7]. Their policy statement is blunt about it: AAC should be provided to children who need it regardless of age, cognitive level, or severity of disability. There's also strong support for parents doing this work at home. A Cochrane review and several randomized trials show that training parents in naturalistic communication strategies produces real language gains for children with autism and developmental delays [8]. You don't need to be an SLP to move the needle here, though guidance from one helps a lot. For children with apraxia of speech who use AAC alongside developing speech, past-tense goals often cover both spoken approximations and symbolic messages, and the two tend to reinforce each other. Sustainability matters as much as strategy. A decent plan you actually do three times a week beats a perfect one you quit after two weeks. Pick one routine and stick with it for 30 days before adding anything else. An end-of-day review is usually the easiest place to start, since it's brief, natural, and you're already together anyway: five minutes, photos if you have them, device out, model two or three past-tense messages, leave a pause, done. Let go of the idea that every interaction needs to be a lesson. Forcing communication wears everyone down. Your daily routine is the structured practice; the rest of the day can just be life. Keep some kind of notes, even loose ones. "Tuesday: said 'park fun' when I showed the photo" tells you more than a vague sense that things are or aren't working. Over three months, those small notes add up to a picture you'd otherwise miss. Find other AAC families if you can. Parent communities (Facebook groups like "AAC and Autism," or resources on the ASHA consumer site) are full of people who've been through exactly this and can tell you what actually helped their kid. Nobody has clean data on what works for your specific child, and peer experience fills that gap better than research does. If you're working with an SLP through autism spectrum communication therapy, lean on them for session notes and home practice ideas. You're carrying out their plan, not building one from scratch, and that's a fair split of the work.Frequently asked questions
Can a non-speaking child really learn to talk about the past?
Yes, though it takes deliberate teaching. Many AAC users develop past-tense communication with consistent modeling, the right vocabulary on their device, and visual supports like photos or event strips. Timelines vary widely: some kids start using past-tense symbols within a few months of systematic modeling, others need a year or more. The key variable is how much input they've gotten, not their diagnosis.
What age should I start teaching past tense to an AAC user?
There's no firm age floor. The American Academy of Pediatrics says AAC should be available regardless of age or cognitive level. In practice, you can start modeling past-tense language as soon as the child has a working system, even in toddlerhood, and starting early won't hurt anything. Most families don't focus on it explicitly until the child already has a base of requesting and commenting, usually after 12 to 18 months of AAC use.
What if my child's AAC device doesn't have past-tense words on it?
That's a real barrier, but fixable. Most AAC systems allow vocabulary customization. Ask your SLP or AT specialist to add time words like "yesterday" and "before," past-tense verbs like "ate" and "went," and evaluative words like "fun" and "scary." If the system is locked down, escalate to the school AT team or the manufacturer's support line. Missing vocabulary is one of the most common reasons past-tense communication never gets off the ground.
How do I bring up a past event without it feeling like a quiz?
Share your own experience first: "I went to the store today. It was busy. I bought apples." Model that on the device. Then show a photo of the child's activity without asking a question yet, and leave a pause. If nothing comes, you can say "You went to the park" and model it yourself. Quizzing demands a correct answer; sharing is just conversation.
What's the difference between aided language stimulation and just talking to my child?
When you talk, you're using speech alone. Aided language stimulation means touching symbols on the AAC system as you speak, in real time, which shows the child how their own device maps onto real language. Research consistently finds this increases AAC users' output more than spoken-only modeling. You don't have to do it perfectly. Rough, imperfect modeling still beats no modeling at all.
How often should we practice past-tense communication at home?
Daily beats weekly, and short beats long. A five-minute end-of-day review every evening works better than an hour-long session once a week. If daily feels impossible, aim for four or five days a week. Even two or three intentional moments weekly is more input than a child usually gets from a single weekly therapy hour.
My child can recall events but doesn't seem to know how to communicate about them. What helps?
This is common: the memory is there, but the communicative bridge is missing. Photos and event strips give a visual cue that signals "this is something you can tell someone about." Partner modeling matters just as much: when you model past-tense messages about the event, you're teaching that this content is sayable, not just something to think about. Specific cues ("You had PE today. What game did you play?") work better than vague open questions.
Should past tense be a goal in my child's IEP?
If your child uses AAC and narrative language matters for school and social life, yes, it's reasonable to ask for it as a goal. Frame it around function: the child will use past-tense symbols to share a recent event during a structured activity with 80% accuracy on two of three trials, or something close to that. If the team pushes back, connect it to literacy readiness, since narrative skill predicts reading comprehension.
Does the type of AAC system matter for learning past tense?
Somewhat. Vocabulary-rich systems, like those built on core word approaches, give children more options for past-tense messages than simple request boards or limited grids. But any system can support some past-tense communication once you add the right words and model consistently. Don't wait for the perfect system before starting. Work with what you have while pushing for better vocabulary access.
What if my child only uses their AAC device for requesting, not narrating?
Very common, and it usually reflects what's been modeled. Children tend to use language for the functions they've seen demonstrated, so if requesting is mostly what adults model, requesting is what they'll do. Start narrating and commenting on the device yourself, including past events. Over weeks and months, kids typically pick up new functions once they've seen them modeled consistently.
How is talking about the past different from talking about feelings, and should I teach them together?
They overlap a lot. Feelings words like "fun," "scared," "excited," and "sad" are often the most meaningful part of a past-event message. Teaching them together makes sense, since a full past-tense message usually carries both the event ("we went to the dentist") and the reaction ("I was nervous"). Evaluative language is often missing from AAC systems and from adult modeling, so it's worth prioritizing alongside time words and verb forms.
Can past-tense AAC communication help with literacy development?
There's good reason to think so. Narrative skill, including sequencing and describing past events, is one of the strongest predictors of later reading comprehension and writing. Kids who can tell a coherent story about what happened tend to do better with text that tells stories too. Treating past-tense AAC work as literacy readiness isn't a stretch: it matches what researchers have found about the link between oral narrative and print literacy.
Sources
- ASHA, Augmentative and Alternative Communication (AAC) overview: AAC supports full communicative participation including describing and narrating past events
- ASHA, Scope of Practice in Speech-Language Pathology: AAC systems should support a full range of communicative functions including narrating past events
- Augmentative and Alternative Communication journal, Aided language stimulation studies: Children receiving aided language input with past-tense modeling showed measurable increases in past-tense symbol use over a 10-week period
- Augmentative and Alternative Communication journal, Narrative skills in AAC users 2016: Children with complex communication needs produced narratives with fewer story grammar components than age-matched speaking peers even with adequate vocabulary
- National Institute on Deafness and Other Communication Disorders (NIDCD): Episodic (autobiographical) memory underlies past-tense narration and can be affected in autistic children
- CDC, Developmental Milestones, Language and Communication: Typical spoken past-tense use emerges around 24 to 30 months and becomes mostly consistent by age 4 to 5
- American Academy of Pediatrics, AAC policy statement: AAC should be provided to children who need it regardless of age, cognitive level, or severity of disability
- Cochrane Database, Parent-implemented intervention for autism and language: Training parents to use naturalistic communication strategies produces real language gains in children with autism and developmental delays
- ASHA, Augmentative and Alternative Communication Evidence Map: Aided language stimulation is supported by evidence as an effective strategy for increasing language production in AAC users
- IDEA, Individuals with Disabilities Education Act, 20 U.S.C. § 1401: IEP teams are required to consider AAC needs for children with disabilities affecting communication